TY  - BOOK
AU  - Date C J
TI  - An introduction to database systems-8
SN  - NULL
PY  - 0000///NULL
CY  - NULL
PB  - Pearson New delhi
KW  - Mechanical
N2  - Engineering
UR  - https://lc.fie.umich.mx/~rodrigo/BD/An%20Introduction%20to%20Database%20Systems%208e%20By%20C%20J%20Date.pdf
ER  -